Weighing apparatus.



No. 639,!08. Patented Dec. 12, I899. J. A. STACKIG G. D. GAHLSUN.

WEIGHING APPARATUS.

(Application filed Jan. 20, 1899.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JOl'lAN AUGUST STAOKIG AND OTTO OARLSON, OF STOCKHOLM, SlVEDEN.

WEIGHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 639,108, dated December12, 1899.

Application filed January 20, 1899 Serial No. 702,857. (No model.)

To aZZ whom it may concern.-

Be it known that we, JOHAN AUGUST STAOKIG and Or'ro OARLsoN, ofStockholm, Sweden, have invented certain new and useful Improvements inWVeighing Apparatus, of which the following is a full, clear, and exactspecification.

In weighing apparatus of the kind wherein the weight or load issuspended from a band placed around a counterweighted rolling cylinderit is of great importance to obtain a uniform movement of the pointerwhen the load is increased and also to be able to regulate this movementaccording to circum stances. These results are obtained by means of theapparatus illustrated in the accompanying drawing and hereinafterdescribed.

To a rib 2 in the rolling cylinder 1 is fixed a pin carrying a movablelink 3, the free end of which is movably connected with one arm 4 of alever 4 5, having its fulcrum arranged on the frame of the weighingapparatus. This link 3 is loosely mounted on a pin at the center of therolling cylinder 1. The lever 1 5 carries a toothed segment 6, engagingwith a pinion 7, to which a pointer 8 is attached. It is evident that bythe movement of the rolling cylinder 1 the lever 3 will turn the link 45 upon its fulcrum, and thus transmit the movement of the said cylinder1 to the pointer 8 by means of the segment 6 and pinion 7. As will beseen from the drawing, the movement of the pointer may be regulated bymeans of the above-described lever arrangement. In the beginning and bysmall increases of the load the movement of the rolling cylinder is onlya small one; but by selecting suitable proportions of the various leversthe distance through which the pointer moves may be increased. On theother hand, toward the end when small increases of the load will bringabout comparatively large movements of the rolling cylinder the distancemoved by the pointer may be made considerably smaller. It is obviousthat by altering the length and point of suspension of the lever 3, asalso the dimensions of the lever 4L 5, one may obtain all kinds ofmovements of the pointersu ch, for instance, as through an absolutelyuniform distance proportionate with the increase of the load.

Instead of the toothed segment 6 and pinion 7 other suitable means fortransmitting the movement of the lever at 5 to the pointer 8 may beemployed such, for instance, as friction-rollers, a cord-pulley with acord attached to a segment, or the like. The same result may also beobtained by attaching the pointer direct to the lever-arm 5, whereby thesaid pointer will move together with the said arm, although its movementto both sides will then be limited to a certain extent.

The rolling cylinder 1 is connected with the post so by a strap y whilethe load is suspended from the rolling cylinder by the strap Z. Thelever 4C 5 is pivoted to the post, and the pinion and pointer are alsosupported on the post. The strap y is attached to the post at the pointp, the lever 4 5 is pivoted to the side of the post at point 4:, and thepinion 7 of the pointer turns around the pin '7, pro jecting from theside of the post.

Having now particularly described and ascertained the nature of our saidinvention and in what manner the same is to be performed, we declarethat what we claim is- 1. In combination, the rolling cylinder with thestraps y and z, the link 3 connected with the rolling cylinder loosely,the indicator and the connections between the link and the indicator,substantially as described.

2. In combination, the post, the rolling cylinder, the straps y, .2,connected to the cylinder, the link 3 connected loosely to the cen terof the cylinder, the indicator and the lever 4, 5, between the link andthe indicator, substantially as described.

In witness whereof we have hereunto set our hands in the presence of twowitnesses.

JOHAN AUGUST STAOKIG. OTTO OARLSON. Witnesses:

I-Iuoo PALMQUIST, J. NILssoN.

